ChemicalBook CAS DataBase List N-T-BOC-PYRROLE

N-T-BOC-PYRROLE synthesis

8synthesis methods

Product Name:N-T-BOC-PYRROLE
CAS Number:5176-27-2
Molecular formula:C9H13NO2
Molecular Weight:167.21

109-97-7 Synthesis

109-97-7
345 suppliers
$9.00/5 g

24424-99-5 Synthesis

24424-99-5
833 suppliers
$13.50/25G

5176-27-2
181 suppliers
$10.00/1g

Yield:5176-27-2 94%

Reaction Conditions:

with triethylamine in dichloromethane at 20; for 2 h;

Steps:

4.1.9. tert-butyl 1H-pyrrole-1-carboxylate (26)
Boc₂O (9.8 g, 44.7 mmol) and TEA (6.3 mL, 44.7 mmol) was added to pyrrole (25) (3.0 g, 29.8 mmol) in DCM (15 mL) and the resulting mixture was stirred for 2h at room temperature and then worked up with DCM (2 × 400 mL) and water (400 mL). The combined organic layers were dried over MgSO₄ and were concentrated to obtain 26 as white solid (7.5 g). Yield: 94%; ¹H NMR (300 MHz, CDCl₃) δ (ppm) 7.26 (s, 2H), 7.24 (t, J = 2.4 Hz, 1H), 6.22 (t, J = 2.4 Hz, 1H), 1.60 (d, J = 11.7 Hz, 9H); ESI [M + H] = 169.0.

References:

You, Hyun;Youn, Hyung-Seop;Im, Isak;Bae, Man-Ho;Lee, Sang-Kook;Ko, Hyojin;Eom, Soo Hyun;Kim, Yong-Chul [European Journal of Medicinal Chemistry,2011,vol. 46,# 4,p. 1153 - 1164] Location in patent:experimental part

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109-97-7 Synthesis

109-97-7
345 suppliers
$9.00/5 g